Road under Special Conditions:

Roads passing through difficult terrain and environmental conditions require special attention in design, construction and maintenance. The following conditions are treated in this unit:

(a) Hill Roads

(b) Roads in marshy areas

(c) Roads in deserts

(d) Low cost roads connecting villages

Objectives

The objectives of this Unit are to cover the special problems of designing, constructing and maintaining roads in difficult area.

After studying this unit, you should be able to

• understand the design standards, construction practices and maintenance procedures in respect of hill roads and roads in marshy and desert areas,
• know the design of low cost Rural Roads serving villages, particularly unpaved roads,
• understand how low cost roads can be constructed with appropriate technology, and
• have an idea of how low cost roads can be maintained.